DE3932032A1 - Absorbent textile sheet, esp. for prodn. of medical compresses - by laying raw cotton fibres into a mat, wetting with aq. detergent, compacting with a water jet, boiling, scouring, washing and/or bleaching - Google Patents

Abstract

A process is claimed for the prodn. of an absorbent textile sheet (I) by laying up the fibres in a pre-oriented fashion to form a mat and then compacting the mat with a jet of water; the novelty is that (a) the fibres are unboiled, unscoured, unwashed and unbleached cotton fibres, (b) the fibre mat is wetted with an aq. system before compaction, and boiled, scoured, washed and/or bleached after compaction. (I) is claimed, for the prodn. of adsorbent or absorbent medical and/or hygiene materials for absorbing liqs. and secretions, esp. medical compresses, and consisting of a fibre mat which is compacted by mechanical means only, using a water jet. More specifically aq. wetting system (II) lowers the surface tension of the water, and pref. contains detergent, esp. a non-foaming or low-foam detergent, pref. 0.1-10 (esp. pref. 0.5-5) g/l alkyl sulphate, alkyl sulphonate and/or a non-ionic detergent; (II) also contains a foam suppressant; fibre mat is wetted at (room temp.)-80, pref. (room temp.)-40 deg.C; the mat is placed between 2 carrier belts and wetted by passing (II) through the mat; fibre staple length is 5-45 (pref. 10-25) mm; the cotton is mixed with 5-55 (pref. 10-30) wt.% rayon staple fibre and/or synthetic fibre; water jet pressure is 20-150 (pref. 40-90) bar; the compacted mat is subjected to a further water jet treatment to produce a network structure; the compacted mat is produced in a first stage and then dried, and washed, boiled, scoured, and/or bleached in a later stage, or subjected to these processes after compaction; water absorption of (I) (single layer) is 250-1000 (pref. 500-800) g/m2; (I) has a network structure; (I) contains amts. of other fibres as above, pref. with not more than 10 wt.% synthetic fibre; (I) has wt./unit area = 20-60 (pref. 23-40) g/m2 and pref. consists of boiled or scoured and bleached cotton fibre. USE/ADVANTAGE - For applications see above. A medical compress for absorbing secretions is claimed, comprising 4-16

Description

The present invention relates to a process for producing a absorbent textile fabric with the features of the preamble of claim 1 and an absorbent fabric with the features of the preamble of claim 15.

Absorbent fabrics are available in a variety of designs tions and for a variety of applications known. So be with For example, needled or selectively bonded nonwovens as a wiper or household towels, in diapers, sanitary napkins, continental articles o. The like. used while in the field of medical wound care woven gauze compresses are used, such Gauze compresses usually made from a fairly loose-set fabric consist of plain weave. Here are the known gauze compresses the disadvantage that they are a rather expensive production require, as they are usually multi-layered according to a specific pattern,  for example, eight, twelve or sixteen-ply with inside folded edges are folded to not ripping out the to prevent hardened edges. As fiber substrates are in the previously described absorbent fabrics both natural fibers used alone as well as blends with synthetic fibers, wherein especially in the field of the aforementioned medical and Hygienic applications increased demands in terms of Foreign substances are placed on the fabrics. For this reason For this purpose, nonwovens solidified with binders are also eliminated.

With needled nonwovens there is the problem that it is easy in the Production of nonwovens by needling to damage the in the nonwoven fabric processed fibers can come, resulting in a expresses reduced mechanical strength of nonwovens. Also is the surface of such fabrics for applications in the medical area too roughened or flusig.

In addition to the fabrics described above are still nonwovens known, which by means of water jets after the so-called Jetlace- Processes are made. Here are in this Jetlace method, which is known from DE-AS 16 35 577 and the preamble of Claim 1 corresponds to the nonwoven fabric forming fibers according to a previous alignment, which is usually a Carding is done, laid to a fiber fleece. Then this will be Nonwoven subjected to a water jet treatment. This will ensures that the individual fibers of the nonwoven intertwined, be hacked and / or confused, creating the necessary mechanical Composite of individual fibers and thus the strength of the thus produced Nonwoven fabric is achieved.  

As the embodiments of DE-AS 16 35 577 prove that can be Jetlace process so far only flawless and economically justifiable on such nonwovens, which consist of man-made fibers or one very high proportion, d. H. more than about 70% by weight, synthetic fibers otherwise there is an undesirable unevenness, e.g. B. the formation of thickening or knots, in the non-woven fabric comes.

The present invention is based on the object, a method of specified type, with the particularly uniform and a high proportion of cotton fibers having nonwoven fabrics can be produced.

This object is achieved by a method with the kenn drawing features of claim 1 solved.

According to the invention thus a method for producing a suction able fabric proposed in which one does not ge as a fiber Washed, not boiled, unmanipulated and not bleached tree wool fibers, d. H. thus raw cotton fibers used. Here are This raw cotton fibers aligned, which is usually through a Carding happens. Thereafter, from the so-oriented raw cotton fibers laid a nonwoven, which is wetted in an aqueous system and is then solidified by means of water jets, through which Water jet treatment entanglement, tangling or matting the Individual fibers is caused. After solidification to the nonwoven fabric then done a washing, boiling, Beuchen and / or bleaching the sun produced nonwoven fabric.

The inventive method is based on the basic idea, the natural Liche hydrophobicity of raw cotton, which is due to the cotton  Adhesive natural fats and waxes are evoked for the off straighten and then solidify by means of water jets use. This ensures that the raw cotton fibers immaculate free without the formation of thick spots or knots, preferably by a Carding, align. Furthermore, these natural fats and cause Waxes of raw cotton fibers that in the subsequent solidification of the Nonwoven fabric by means of water jets against the actual cotton fiber be protected over this mechanical stress and moreover the hooking, tangling or felting of the individual fibers easier As the natural fats and waxes reduce the fiber-fiber friction and increase the elasticity of the individual fibers. Also it can not to an undesirable rinsing and thus to an undesirable Foaming in the water jet treatment come because the natural Fats and waxes of raw cotton fiber are insoluble in water. By the washing following the solidification to the nonwoven fabric, Decoction, humidification and / or bleaching are these natural fats and Waxed away, leaving the finished nonwoven next to an excellent mechanical resistance an excellent moisture absorption ver like owns.

The inventive method has a number of advantages. So For example, it is particularly environmentally friendly to carry out here to apply to the application of synthetic preparations on the ver working cotton fibers can be dispensed with. You can also relax the process of the invention is particularly uniform and thickening or knot-free nonwovens produce, which also because of the therein exclusively or at least to a large extent processed Cotton fibers a particularly high moisture absorption capacity have. In addition, as the method according to the invention produced nonwoven fabric has no binder or adhesive,  Such a nonwoven fabric may preferably also be used in the medical or hygienic area instead of the well-known gauze compresses used become. This also has the advantage that in a multilayer Arrangement of the nonwoven fabric folding the machine, for example, on a known napkin folding plant, can be performed, since in a nonwoven fabric as compared to a tissue outgrowth of Cutting edges can not occur and thus when folding on it no consideration has to be taken. Furthermore, in such a Nonwoven fabric compared to a gauze fabric not just the moisture absorption, but also increases the pumping speed, since this is the Fiber interstices are significantly enlarged and also the individual fibers are not connected to each other by a Garnzwirnung, so that a fleece compared to a twisted yarn Mull fabric has a higher capillarity.

A further embodiment of the method according to the invention provides that one the non-woven fabric with a the surface tension of the water wetting, especially surfactant-containing aqueous system wetting. virtue wise here is a non-foaming or low-foaming surfactant Surfactant used so as to prevent the subsequent Ver fortification to nonwoven fabric by means of water jets foam in unwanted Quantities arises.

Particularly good results can be in the inventive Process then achieve if you as a low-foaming or non-foaming Surfactant a surfactant based on an alkyl sulfate and / or alkyl sulfonate and / or a non-organic surfactant, such as a ethoxylated fatty alcohol, used, the concentration of previously mentioned surfactants or the surfactant mixtures listed above between 0.1 g / l to 10 g / l and 5 g / l, varies.  

Of course, it is also possible in the method according to the invention to work with surfactant systems that require some foaming cause. This is to prevent this foam then the aqueous surfactant-containing system, a defoaming agent, preferably an anionic or nonionic defoaming agent based on emulsified aliphatic oils, aliphatic hydroxyl compounds, a mixture of organic esters and hydrocarbon compounds and / or a silicone emulsion or polysiloxane compounds, wherein the concentration of this defoaming agent is between about 0.1 g / l and about 1.5 g / l, preferably between about 0.2 g / l and about 0.5 g / l, varies.

With respect to the temperature of the netting of the non-woven fabric is general to note that with increasing temperature of the network operation is accelerated. Usually, the temperature of the aqueous System when meshing between room temperature (about 15 ° C) and 80 ° C, preferably between room temperature and 40 ° C, vary.

To further accelerate the netting of the fiber fleece, sees one Another embodiment of the method according to the invention that the Nonwoven fabric is forcibly flowed through by the aqueous system. This can be achieved, for example, by the nonwoven fabric hangs during meshing on a screen drum and thereby transported, the aqueous system in particular from the interior of the Screen drum is withdrawn, so that the aqueous system, the nonwoven fabric flows through from the outside to the inside. Preferably, however, the fiber becomes fleece held between two Siebgewebebändern when meshing and the aqueous system sucked by a pump through the fiber fleece or pressed.  

In addition, in the inventive method is still the Possibility of the nonwoven fabric after netting via conventional squeezing squeeze, which causes a further acceleration of the network. Here, the line pressure of such a squeezing varies between about 0.5 t and about 5 t, the squeezing width usually between 1.2 m and 2 m, preferably at about 1.5 m to about 1.8 m, lies.

The used in the process according to the invention for nonwoven production th fibers can be different. Regarding the staple length of the fibers It should be noted that these are between about 5 mm and about 45 mm, preferably between about 10 mm and about 25 mm.

As a substrate in the inventive method either finally cotton fibers or blends of cotton fibers with cell wool fibers and / or synthetic fibers, such as in particular Polyester fibers used. Here are the proportions of cellulose fibers and / or synthetic fibers total between 5 wt .-% and 55 wt .-%, preferably between a total of 10 wt .-% and 30 wt .-%. In particular, an addition of cellulosic fibers in a range between 5 Wt .-% and 35 wt .-%, preferably in a range between 10 wt .-% and 20 wt .-%, causes that of such a fiber mixture produced nonwoven fabric can be particularly well and quickly wetted, resulting in the subsequent solidification of the nonwoven fabric by means of Water jets in a particularly high uniformity and Knot freedom makes noticeable. On the other hand causes the aforementioned Addition of synthetic fibers, that the strength, especially the Wet strength, of the produced by the process according to the invention Nonwoven fabric is particularly large, so that a nonwoven fabric, which consists of a Mixture of cotton and synthetic fibers as well as possibly cellulose fibers  is manufactured, an excellent resistance to one has mechanical stress.

Usually, the wetted nonwoven fabric at a pressure of water radiate between about 20 bar and about 150 bar, preferably between about 40 bar and about 90 bar, solidified. Here are the previously said pressures according to the particular starting material used, d. H. for a non-woven fabric made exclusively of cotton fibers, varies the pressure of the water jets used for solidification preferably between about 40 bar and about 70 bar while the pressure is at a nonwoven fabric made from a mixture of cotton fibers and Polyester fibers, more preferably between about 70 bar and about 150 bar lies.

In another embodiment of the method according to the invention provided that the solidified nonwoven fabric for producing a Net structure is subjected to a further water jet treatment. Here, preferably, the nonwoven fabric for training this Hole structure placed on a suitably ausgestaltetes carrier tape and possibly covered with a second carrier tape, so that in this Re-water jet treatment thus the hole structures of the lower and / or the upper carrier tape are embossed onto the nonwoven fabric. As a result, any hole structure of the nonwoven fabric produced become. The hole structure can also be known per se Process according to FR-A 25 36 432 are formed.

Basically, there are two possible in the method according to the invention The raw cotton fibers comprising the consolidated nonwoven fabric to wash, to cook, to brew and / or to whiten. Hereby sees the first possibility that in a separate operation initially,  As described above, the nonwoven fabric is made and solidified will be at a later date, if necessary after one Intermediate drying, washing, cooking, cooking and / or drying bleaching. The second option is followed by the Webbinding immediately washing, boiling, and / or Bleaching, wherein in this procedure, preferably on a Forgoing intermediate drying and the solidified nonwoven fabric in the Washed, boiled, grout and / or known wet-on-wet technology bleaches.

In the method according to the invention, the aforementioned Further treatment steps (washing, decoction, treatment and / or bleaching) according to the field of application of the fabric thus produced. Becomes For example, the nonwoven fabric of the invention as a wipe, pickup, Window cloth o. The like. Formed, then preferably connects to the Solidification by means of water jets only a washing process, possibly with solvent-containing surfactants, on. This will then be a major part of natural fats and waxes removed from the raw cotton fibers, so that Although such a nonwoven fabric produced particularly cost can be, however, because of the still adhering fats and waxes has lower moisture absorption and absorbency.

Is on the other hand, an improved moisture absorption and absorbency desired, so closes in the inventive method to the Web consolidation a Abkochprozeß, said this Abkochprozeß under carried out the conditions known in cotton pretreatment becomes.

A further improvement in moisture absorption and absorbency can be achieved by loading the solidified nonwoven fabric,  taking the beech among the ones in the cotton pretreatment conditions carried out.

A particularly pure, d. H. residue-free nonwoven fabric with an extremely high moisture absorption and absorbency can be through the achieve inventive method by solidifying the Nonwoven fabric then boiled and / or grouted and additionally with the usual bleaching chemicals, such as sodium chlorite or Hydrogen peroxide, bleaches. Such a bleached nonwoven fabric is particularly suitable for the production of compresses in the medical or hygienic area, since this nonwoven fabric in the Compared to the known fabrics, such as bleached gauze, besides having excellent absorbency yet a significantly improved moisture or secretion capacity has. In addition, such a nonwoven material meets these Application requirements regarding the purity values according to the European Pharmacopoeia and / or DAB, especially since the last Work step, d. H. bleaching, all unwanted impurities be removed from the nonwoven fabric, as described below by the Embodiments is occupied. Here is another benefit of to see method according to the invention.

The present invention further relates to a cotton fiber-containing Textile fabrics for the production of adsorption or absorption materials for liquid or secretion in the medical and / or hygienic area, in particular for the production of medical compresses. Here, the invention produced textile fabric formed as a nonwoven fabric, wherein the nonwoven fabric solely by a mechanical incorporation of the fibers by means Water jets is solidified.  

The inventively formed nonwoven fabric has the advantage that he has a high uniformity and node freedom. Are also still the incorporated in the nonwoven cotton fibers, which in the Production of the nonwoven fabric as raw cotton fibers in the nonwoven fabric incorporated, washed, boiled, bleached and / or bleached, Thus, such a finished nonwoven fabric has an extremely high Moisture absorption and absorbency, making it excellent for the production of medical or hygienic compresses is suitable. Another advantage is the fact that a corresponding fleece cut even if it is cut out of a larger sheet, not at the edges, such as a gauze, ausriffelt, so that in the manufacture of a corresponding multilayer, preferably four- to twelve-ply compress on a folding with inside beaten edges can be dispensed with. Rather, such a Nonwoven compact machine on the known Napiettenfalt machines are folded, resulting in a significant saving and club simplification of the production process. In addition, since the last Step in the production of a corresponding nonwoven fabric Compress the bleaching process, have the inventively prepared Nonwovens an extremely low concentration of impurities, so that they easily meet the very strict requirements of the European Pharmacopoeia or the German Pharmacopoeia fulfill, which z. B. be placed on cotton gauze.

As already stated above, the inventively embodied Sheets are in the raw state, d. H. here are the in the Nonwoven fabric fibers not washed, not boiled, not light and / or not bleached. Preferably, however, that is Inventive sheet as a finished nonwoven before, d. H. that The nonwoven fabric is at least washed to be part of the natural one  Remove fats and waxes from the cotton fibers. Especially good Results regarding absorbency and moisture absorption have nonwovens that are boiled, scoured and / or bleached.

The staple length of the eingearbei in the sheet according to the invention Teten cotton fibers is between 5 mm and 45 mm, preferably between 10 mm and 25 mm.

The water absorption capacity of the present invention formed Flächenge image is in a single-layer arrangement between 250 g / m ² to 1000 g / m ² , preferably between 500 g / m ² and 800 g / m ² . In this case, it is assumed that the sheet according to the invention has a grammage of between 20 g and 60 g, in particular between 23 g and 40 g. If, however, the square meter weight of the fabric according to the invention is higher, for example between about 60 g and about 100 g, then such heavier nonwovens can absorb correspondingly higher amounts of water, the water uptake assets (single layer) of such nonwovens between about 1000 g / m ² and about 2000 g / m ² varies.

Preferably, the fabric according to the invention has a network structure in particular generated by a second water jet treatment becomes, as already described above. This varies Mesh size of this network structure, which naturally because of the individual fibers not so pronounced, between about 0.1 mm and 2 mm, before preferably between about 0.5 mm and 1 mm.

With respect to incorporated in the sheet according to the invention Fibers exist several possibilities from the substrate side. So can one in the nonwoven fabric exclusively cotton fibers of the aforementioned  Incorporate staple lengths so that a nonwoven fabric made therefrom exclusively made of cotton fibers. It is also possible that the nonwoven fabric in addition to the cotton fibers still a total of 5 wt .-% to 55 Wt .-%, preferably between a total of 10 wt .-% and 30 wt .-%, cell wool fibers and / or synthetic fibers, in particular polyester fibers, having for the medical and hygienic application Preferably, the proportion of synthetic fibers is less than 20 wt .-%, since such Nonwoven fabrics are subject to only a low mechanical stress.

Advantageous developments of the method according to the invention and the Inventive sheet are specified in the subclaims.

The inventive method and claimed according to the invention Fabric will be described in more detail with reference to an embodiment explained.

Creped cotton fibers of a staple length between 15 mm and 20 mm were laid to a fiber fleece. This was Rohbaum wool fibers. Subsequently, this fiber fleece was in an impregnation plant wetted with the following liquor at 25 ° C:

2 g / l of a surfactant based on an alkyl sulfate
0.2 g / l of an aliphatic hydroxyl compound-based defoaming agent

The residence time in meshing was 3 seconds. Subsequently, the Non-consolidated nonwoven fabric of a hydroentanglement at a Subjected to pressure of 70 bar. This was followed by a second water beam treatment, wherein by this second water jet treatment a structuring has been achieved so that the thus treated nonwoven fabric  a mesh structure with a mesh size of about 0.05 mm.

The thus-bonded nonwoven fabric was placed on a perforated bobbin wound up and then in a liquor ratio of 1:10 at 98 ° C boiled with the following liquor:

7 g / l sodium hydroxide (solid)
2 g / l Lufibrol KB 74 (manufacturer: BASF)
2.5 g / l of a nonionic surfactant based on an ethoxylated fatty alcohol

After a treatment time of 2 hours, the nonwoven fabric was multiply rinsed with hot and cold water. Subsequently, a water peroxide bleach in a liquor ratio of 1:10 at 95 ° C during 3 hours with the following fleet:

5 ml / l hydrogen peroxide, 35%
1.5 g / l sodium hydroxide (solid)
1 g / l of a stabilizer based on a mixture of anionic and nonionic substances
1 g / l of a wetting agent based on a combination of nonionic and anionic surfactants.

After bleaching, the nonwoven fabric became thoroughly hot and cold Water rinsed.

The nonwoven fabric produced in this way had the following properties:

grammage 40 gsm Water absorption capacity analogous to DIN 53 923 3244 gsm,

in a nonwoven fabric, which was folded four times during the measurement. This value corresponds to a water absorption capacity of theoretically 3244: 4 = 811 g / m ² in a single-layer arrangement of the nonwoven fabric, which does not occur in practical use.

Tensile strength in the longitudinal direction (N / 5 cm) 50 Tear force in the transverse direction (N / 5 cm) 40

Furthermore, the residues were determined from the nonwoven fabric in accordance with the guidelines of the European Pharmacopoeia and the German Pharmacopoeia applicable to gauze. It was found that the nonwoven fabric had no acidic or alkaline Verunreini conditions, while the water-soluble fractions 0.05% and the ether soluble fractions made up 0.23%. The sulphated ash was 0.15%. By comparison, a gauze compress with a basis weight of the gauze of 23 g / m ^{2 was} tested. Here, the Wasseraufnahmever was like measured on an eight-ply gauze. In detail, the following values could be determined:

grammage 23 gsm Water absorption capacity analogous to DIN 53 923 2280 gsm Tear force in the warp direction (N / 5 cm) 55 Tearing force in weft direction (N / 5 cm) 35

The previously reported water absorption capacity was measured on an eight times folded gauze, so that in a single-layer arrangement of the gauze compress this value corresponds to a theoretical value for the water absorption capacity of 2280: 8 = 285 g / m ² .

In addition, the tailings from the garbage were collected in accordance with the Test Guidelines of the European Pharmacopoeia and the German Pharmacopoeia certainly. It could be determined that the gauze is not acidic or alkaline contaminants while the water-soluble 0.15% and the ethereal shares 0.3%. The Sulphated ash was 0.16%.

As can be seen from these values, the nonwoven compress in the Compared to the gauze compress especially with respect to the water significantly better values.

Claims (23)

1. A process for producing an absorbent textile Flächengebil of, in which one puts fibers after a previous alignment to a nonwoven fabric and then solidified the nonwoven fabric by means of water jets, characterized in that not boiled as fibers, non-tempered, not washed and not bleached cotton fibers and that the nonwoven fabric is wetted with an aqueous system prior to hydroentanglement and, after solidification, boiled, scrubbed, washed and / or bleached. 2. The method according to claim 1, characterized in that the Nonwoven fabric with a surface tension of the water mitigating, especially surfactant-containing aqueous system wetting. 3. The method according to claim 2, characterized in that as Surfactant used a non-foaming or low-foaming surfactant.   4. The method according to claim 2 or 3, characterized in that one a surfactant based on an alkyl sulfate, alkyl sulfonate and / or a non-organic surfactant in a concentration between 0.1 g / l and 10 g / l, preferably in a concentration between 0.5 g / l and 5 g / l puts. 5. The method according to any one of the preceding claims, characterized records that the water or the aqueous surfactant-containing system Add a defoamer. 6. The method according to any one of the preceding claims, characterized characterized in that the nonwoven fabric at a temperature between Room temperature and 80 ° C, preferably between room temperature and 40 ° C, wets. 7. The method according to any one of the preceding claims, characterized draws that to net the nonwoven this between two Straps bands and the aqueous system through the nonwoven fabric promotes. 8. The method according to any one of the preceding claims, characterized records that squeezes the nonwoven fabric after nets. 9. The method according to any one of the preceding claims, characterized records that one has cotton fibers with a staple length between 5 mm and 45 mm, preferably between 10 mm and 25 mm. 10. The method according to any one of the preceding claims, characterized characterized in that the nonwoven cellulosic fibers and / or synthetic fibers between a total of 5 wt .-% and 55 wt .-% preferably between  a total of 10 wt .-% and 30 wt .-%, added. 11. The method according to any one of the preceding claims, characterized characterized in that the nonwoven fabric at a pressure of the water jets between 20 bar and 150, preferably between 40 and 90 bar, solidified. 12. The method according to any one of the preceding claims, characterized records that the nonwoven fabric formed from the nonwoven fabric for Generation of a network structure of a further water jet treatment subjects. 13. The method according to any one of the preceding claims, characterized records that you first solidified in a first operation Produces nonwoven fabric and if necessary this nonwoven fabric is dried and in a subsequent operation washes the nonwoven fabric, boils, grouts and / or bleaches. 14. The method according to any one of claims 1 to 12, characterized gekennzeich net, that the nonwoven fabric washes after solidification, boils, grazes and / or bleaches. 15. Cotton fiber-containing textile fabric for the production Ad- or absorption materials for the liquid or secretion recording in the medical and / or hygienic field, in particular for the production of medical compresses, characterized net, that the sheet is formed as a nonwoven fabric alone by mechanical incorporation of the fibers by means of water jets is solidified.   16. A fabric according to claim 15, characterized in that in The nonwoven fabric incorporated cotton fibers a staple length between 5 mm and 45 mm, preferably between 10 mm and 25 mm. 17. The sheet material according to any one of claims 15 or 16, characterized in that the nonwoven fabric in a single-layer arrangement, a water absorption capacity between 250 g / m ² to 1000 g / m ² , preferably between 500 g / m ² and 800 g / m ² , owns. 18. Sheet material according to one of claims 15 to 17, characterized marked records that the nonwoven fabric has a network structure. 19. A fabric according to any one of claims 15 to 18, characterized marked characterized in that it is in total between 5 wt .-% and 55 wt .-%, preferably between 10% and 30% by weight of synthetic fibers and / or cellulose fibers. 20. A fabric according to claim 19, characterized in that the Synthetic fiber content in the nonwoven fabric is limited to 10 wt .-%. 21. The sheet according to any one of claims 15 to 20, characterized in that the nonwoven fabric has a basis weight between 20 g / m ² and 60 g / m ² , in particular between 23 g / m ² and 40 g / m ² . 22. A fabric according to any one of claims 15 to 21, characterized marked records that the nonwoven fabric boiled or bruised and bleached Includes cotton fibers.   23. Compress for secretion in the medical field herge represents a four- to sixteen-fold superposition of a boiled or dressed and subsequently bleached area of one of claims 15 to 22.